73731525 has 36 divisors (see below), whose sum is σ = 141812352. Its totient is φ = 33704160.

The previous prime is 73731521. The next prime is 73731527. The reversal of 73731525 is 52513737.

It is not a de Polignac number, because 73731525 - 2² = 73731521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73731521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6357 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (3939232).

Almost surely, 2^73731525 is an apocalyptic number.

73731525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73731525 is a deficient number, since it is larger than the sum of its proper divisors (68080827).

73731525 is a wasteful number, since it uses less digits than its factorization.

73731525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090 (or 20078 counting only the distinct ones).

The product of its digits is 22050, while the sum is 33.

The square root of 73731525 is about 8586.7062951984. The cubic root of 73731525 is about 419.3253056300.

The spelling of 73731525 in words is "seventy-three million, seven hundred thirty-one thousand, five hundred twenty-five".